This industrial roof ventilation fan is published with the manufacturer’s full specification — 380V, blade material Stainless Steel. Made by Ningbo Longwell Electric Technology Co., Ltd. (9 years on the platform, factory-assessed). For a binding price and lead time, send the volume you need and where it ships to.
Key Features of This Industrial Roof Ventilation Fan
- Model Number: Centrifugal Roof Fan
- Voltage: 380V
- Blade Material: Stainless Steel
- Material: Carbon Steel
- Warranty: 1 Year
- Place Of Origin: Zhejiang, China
Technical Specifications
| Mounting | Roof Fan |
|---|---|
| Voltage | 380V |
| Blade Material | Stainless Steel |
| Electric Current Type | AC |
| Warranty | 1 Year |
| After-Sales Service Provided | Free Spare Parts |
| Customized Support | OEM, ODM |
| Place Of Origin | Zhejiang, China |
| Brand Name | LONGWELL |
| Model Number | Centrifugal Roof Fan |
| Product Name | Centrifugal Exhaust Fan |
| Application | Air Ventilation |
| Usage | Dusty Air Ventilation |
| Feature | High Efficiency |
| Motor | AC Motor |
| Size | Customer’s Request |
| Material | Carbon Steel |
| Keyword | roof exhaust fan |
| Function | Ventilaion |
| Color | Blue |
| Packaging Details | Standard Exporting packages – OEM AVAILABLE |
| Selling Units | Single item |
| Single Package Size | 58X58X28 cm |
| Single Gross Weight | 8.0 kg |
| Supply Ability | 50000 pieces per Month |
Product Details






Model | Rotational speed (r/min) | Matching motor (kw-p) | Air volume (m³/h) | Total pressure (Pa) |
LWCRF360 | 1450 | 1.1-4 | 1332-2634 | 393-347 |
LWCRF400 | 1450 | 1.1-4 | 2006-3709 | 501-329 |
LWCRF450 | 1450 | 1.1-4 | 2856-5281 | 634-416 |
LWCRF500 | 1450 | 2.2-4 | 3864-7728 | 790-502 |
LWCRF600 | 1450/960 | 4-4/1.5-6 | 6677-13353/4420-8841 | 1139-724/498-317 |
LWCRF700 | 960 | 3-6 | 8390-13580 | 680-510 |
LWCRF800 | 960 | 5.5-6 | 10478-19428 | 887-651 |
LWCRF1000 | 730 | 7.5-8 | 20350-28497 | 805-637 |














Ordering and Pricing
- Minimum order quantity: 10 piece
- Volume pricing:
- 10+ piece: US $160 / piece
- Ships from: China
- Customization: OEM and ODM accepted on qualifying volumes.
Frequently Asked Questions
What is the minimum order quantity for this industrial roof ventilation fan?
The standard minimum order quantity is 10 piece. Trial orders can usually be arranged for buyers evaluating the product before a full production run.
What warranty is provided?
The manufacturer provides a 1 Year warranty. Spare parts and technical support remain available after the warranty period.
Can the industrial roof ventilation fan be supplied for my local voltage?
The standard configuration is 380V. Alternative voltage and frequency builds are available when specified at the time of order.
Do you accept OEM or custom branding?
Yes. Custom logo, colour, packaging and specification changes are accepted on qualifying order volumes. Send your artwork and technical requirements with your enquiry.
How long does production and delivery take?
In-stock configurations typically ship within 7–15 days. Customised or large-volume orders are usually produced in 25–35 days, confirmed on order.
About the Manufacturer
This product is produced by Ningbo Longwell Electric Technology Co., Ltd., based in China. The company 9 years as a verified Alibaba.com supplier, operates its own manufacturing, passed third-party supplier assessment. Browse the full Ningbo Longwell Electric Technology Co., Ltd. range on HVACR Nexus.
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